Speed-alarm-control device



March l2, 1929. s. s. SEARS SPEED ALARM CONTROL DEVICE Filed NOV- 20, 1926 3 Sheets-Sheet ITIVIIIII "lili EjrTO ATTORN Y 5 Sheets-Sheetl 2 Q O 'Q lq we ToR ATTORNEY March l2, 1929. s, G, SEARS SPEED ALARM CONTROL DEVICE Filed NOV. 20, 1926 I March 12, 1929. 5, G, SEARS 1,705,031

spasm ALARM CONTROL DEVICE Filed Nov'. 2o, 192e 3 sheets-sheet 3 ATTORNEY fli' lovin' inni :iii-ii if:

:i ai Yinl :iiiiii l :iii-fi in@ iisiiiffg :iix :im opi-ini ion i'oiziiioii oiI ii i "l ini-finirHiwvlww ulivi' 4 will flan-- j. miimm oi Sno inf-maw,

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versely and, as shown, is mounted in a bearing aperture in the front of the casing and is provided with a knob 23h at the front end thereof while the rear end 23@ is reduced in `diameter and bears in a screw head 15vl which secures the bell l5 to the casing C. As illustrated, the cam 22 may be caused to engage with any suitable means for causingthe shaft to be raised and lowered and, as illustrated, the perimeter ot' the cam engages with a shelf or arm formed integrally with a sleeve 25 swivelled on the shaft 5 and held against vertical displacement in relationship to the said shaft. by lixed collars 25, 2U. The swivel sleeve 25 carrying' the shell 24 is ipireferably prevented t'rom rotating willi the shaft 5 by providing' at one side ol said member 25 a pin 251 which extends into and slides within a vertical slot 2G in a stationary L--shaped arm 26 suitably fastened at one end to the side ol' the easing and at the other end connected to and forming, support for a ratchet guide 2T. 'l'he arm 26 has a horiz(intally-extending portion 26L forlted and forming' a shelf to maintain the ratchet l0 in lixed position on the shaft and said ratchet is preferably provided with an integral grooved collar lll" into which the forked portion 2e einem ls, the said ratchet 1t) being thus mounted to rotate with the shaft but to maintain a lixed position in relation to the ratchet lever ll. ln order to permit the shaft 5 to slide relativelyv to said ratchet wheel 1t), the shaft 5 is, as shown, provided with a slot 5C and the ratchet ll) is provided with a pin 10" keying into said slot.

The cam 22 has tour positions at varying distances from the center of the adjusting shaft 23 and l preferably lix on said cam shaft the colored disc D having the sector-shaped portions l as more particularly shown in Fijas. 5 and 1t), it being understood that these colored portions register with the various positions ot the cam and that a differenteolor will be exposed through the openings c l'or each position of the cam.

lt is desirable to prevent the too rapid reverse moven'ient of the member 4 by the spring 9 upon disengagement from the member 3 and for this purpose, l provide means for controlling' such reverse movement. As illustrated, such movement is controlled by a tly leaf 17 mounted on a shaft- 18 in bearing brackets 19 and 2t) respectively. extending l'rom the side of the casino', this shaft 18 being provided with a pinion 2l engigae'ing' with the teeth of the pinion 4 and preferably being' movable with said pinion along the shaft 18 to follow the position ot the member 4.

The spring 9 also is preferably slightly eoned above thecasing 9 to allow a more resilient meshing' between the members 4 and 3.

lt is desirable when the set, alarin-fg'ivingspeed is reached to warn the operator of the vehicle that this condition exists so as to allow him to reduce his speed before the emergency time period, which will correspond to a given or predetermined distance, expires and to this end l provide the member 4 with a series of pins or projections 4 which, when said member 4 is rotated, are adapted to engage an initial-warning element". As shown, this warning element is in the form ot a spring` arm 28 fastened to a blocl' 29, piroted on a spindle 3() suitably supported in the easing', said spring-arm 28 having a Vtree end arranged to strilte against pins 25 in the bottom ot' the gear 4, thus providing means for giving an initial warning' that the lixed speed has been reached and that unlessl the .speed is reduced within a predetermined interval, the alarm will be given.

Under rei-tain conditions, it is desirable to tix a speed which may be maintained or enceeded fo' a relatively short preiletermined interval as hereinabove described but to cause a n alarm to be immet/liately gi ven in the event that the speed olI the vehicle during' such deterred interval reaches another tixed speed, that. is to say, in case the ,speed lirst set is exceeded by a predet ermined number of miles per hour` and l have hereinafter referred to this limit as an exees-ssive speed limit and to this end l mount on the shalt 5 a secondaryactuating pinion 3lV which is preferably 'ast on the sl a l't fi, and which so soon as the actuating' member 3 engages the same, will imita-handy cause a rotation ot the shaft 5 and a e'ivintg ol` the alarm by the same means hereinabove described. lt will be seen, theretore, that in case a driver does not pay attention to the warning and exceeds the speed set by the member 4 to an extent sulticient to cause engagement of the member 3l, the alarm will be instantly lgiven.

lit is desirable to permit a testing oll the deviee at a low speed for the purpose ot determining' whether it is in operating order. and tor this purpose. l provide testing' means lor engaging' the top ol' the shaft 5 and depressing the same to lower the position of the engaging' members and thus to lower the speed at which the members 4 and ill will operate the alarm. As illustrated, l provide a testing pin 32 which passes through an opening' 32a in the outer perimeter ol'v the easing which registers with the bearing' Si" oi" the shaft 5. This testing pin CS2 preferably` is provided with a. stop-pin 32 to prevent withdrawal thereof from the casina'. and. as shown. the stop-pin 32 operates in a slot Il?) in the bei ring' 5 so as to permit depression of the testingf pin to depress the shalt and cause an engagement or coupling with the speed-measuring' member 3 at a lower speed. ly this device. therefore, an ottieer may, by depression ot' the testingr pin, cause the alarm to be ,e'iven and a testing' of the devitx while the vehicle is going at a low speed.

In the embodiment shown in Figs. 't' to 9 ltlt) llt) lll

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an engaging niemler lil wliieh is :idiipied to enjgage at a kkei ,speed Wit h :in alzirin-artuaiiing gear or Vpinion -ll wliii-li i@ ao mounted as to permit engagement, and relation tor a predeterl'iiined length ol" time tiefere eauieine' the alarm to lie sounded. ln ease the i' id Set. speed is exeeeded Vlo a |'freileermined extent'. then the geen? 43 vvill enga-3e the gear 4:5 Whiili is maintained in tixed pimiton and is arranged to give an immediate alarm upon engagement.

The means rtor delerrin} :ii-lion in this en'iliodinien niowitin;l ol' the iiiemlier ll on elia it lt liiiv ing a Spiral groove -lt and providing; the gear ell with :i pin il ivliieli eiigngjef; wii'hiii the epiral groove,

Uliv'iouslv, ile the shalt l ii-i held :igi'siinst rotation, the rotation of' the leur il liv its engagement vith the gear lil will liiwil valise an elevation ot tilie :ihn'l't itl until the pin fl-l reiielies the end oi' the Spiral groove ll'i aller n'liieh the shaft llt? will he rotated. Vlhe ,aha'in'l elt if: Viniliiillv held against r r tiition by a i isateliet arm lS which reeilientlv enrateliei -lT lioved to the Plaid nhaft. iliieieii tooverroiietherei1if;t;iii eol' .l iii the spiral grs-ome Yiti lint when olf said groove is rein-lied. rotation ol l't A-l-i will 'rotaie iliinL ratliety to pull the ni'iii;:d.5l:i1i l 05o that tlieni'riiie'Btlwill eziifie llie hall 5l lo strike the hell iii and rive the alarm in the iiiaiiiie's iereiniiliove desafrilied.

'lle immediate alarm fiving fear im n; rtedA torni-.id in ein pieee and. niovnlilo ie 'ateliet l 7 sie that iin;T movement ot "ll iinfiiediafielv move the rateliet; to give the aliiriii, )te illustrated, tliieA iinniediat i :iliii'iii;iviii;r gener i;-: :idiiiivxtalilv iiiounted on the heft l so that the speed :it whit-h the ininiei'liale alrirn'i is given mii)Y he -liiinired or varied and` as illualriived, the ini'ii.; rateliet` and gz'ear l5 is provided Wi'ili :i or leather lf' eiigiag'infi :i lonffitudinnl slot; Llll in the Hliat't 4G. A@ yeliovvn. the :idinstiiient ot the Liezir 45 is olitiiined throuQjli the adjustment oic an arm itl 'ivliieh isprovifled et' ita enter end With a tork i8 engaging in a Zgroove 45, Said :irni 48 havingr at its opposite end :i mit 49 mounted to move vertieallvv on h1 oked screw 5() Whieh is mounted in 5l on an adjusting plate 52 which is, in turn, adjuetahiy mounted in liiizielrets 53, 5? The plate is adjustnhly moviilile hy the provision of slots till, 54' en- ;,xiged liv ffifrewn 55, 55.

l`lie plate iilsio e; fee an arm 5G Wliieii ie: adapted to support the gear -ll on the alnitty lil/ with the pin el-'i in the upper end of the spiral alotY fi. and in thin4 eiiihodiment allee, the pofiiioii et the gears ll and lo is adjutalile through the adjustment ot the arm 5G i ate 52 to eiiiise the de lerred alarm and iiediiite alzirin to lie `f iveii fit' any (leniriieeilw. le indieiited. the az'ifii'r;r of

e' sel speeds is eonnii'lt :3T havin; three s re\v-: pliii= 53T', 5T .ii'l oA viii-innig; lengths s0 that Upon ri'itailion ef the vha tt 5T the firm Titi nl'li lie Jed and lowered to raie"y and lower flni jeiii'fi on the shaft 4S.

illuatrated, the :ifljuis'tinlgr plate 5i? is ain il en ol the i-ieren's; o't' the Slizi'lt 57 y iiieiiiieA ot ii spring 58 stretched between the .er eiid lierezz-f :ind lie easing. The shaft if-; mounted :it its inner end iii ri hearing' l and exteiid4 :it its outer end throu :i lifiiaiirl aperture tl() in the i'ront will the housing :ind in1 provided at the initier ide with a linoli (ll. lllilliin the easingy a diei D `ila r te the dise D in the 'einlii'idimeiny liisl dewerihed is provided With eeetorf1l::ipe;l eolored portions4 eozreepoi'idine' in iiii'iiili-.ir with the, niinilier oll serewf purn on an adj Listing ln order to `fivel an initial warningT t0 the driver el tlie ear during' the deterred tinieperiod While the `eur fill ie' engaged and lxetore the alarm in' given. l iiire'teriihly oSeillit'alily mount en the arm titl ii liloel; liy means et n heren' @il and fristen to this liloehy 52 h v :i sieren' (3l a epriiig' (chipper 65 whirli is adapted to he en ed h v pin G6 oii the fen-r 44. The spiinle will lie prevei'itezl Yi'roiii rotation Willi the gear vvheel liv the pin (ST wh'eli eni :i real' L-Hliapeil. portion (35 tliei'eo'l'` while the 'tree end ol) lie :Aprinii' 65 will he held in positii'in to ae, as a elappeiI liv nieiine of the Stop-piiis GT, 6T. tlie to 'nier of Wliieli is engaged with the rear L-SliziV ed portion 65 oilI the spring G4.

The opera ion el i lie elear 'troni the iiliziive defwriptio-n.

Having' dewerilieil nii' invrntiiiin l elziiiii :f-

l. fi Speed-rfi trolling' :sla'ni deviee einliodvinfii. iai e-'iiiiliinatioin nier-ney having' :i

i, i Mn i i i l ie two enihodiiiients will lll) lill) llt) riod after engagement thereof hy the speedvariable 111eans.

2. A speed-controlling alarm device e111- hodying, in combination, 111e1111s having a lnovenient variable in accordance with the speed of 11 vehicle alar1n mechanism having an ailarnnactnaing elementoperaole hy engagement with said speed-variahle111e11ns at a predetern'nned position in its speed-variahle movement1 111e1111s i'oi' delaying the ala rin-giving action o1 said 11hirin-actnating elenieny Yt'or a predetermined period after (fngagenmnl thereoiI hy the speed-variahle means. and ineans tor giving an initial warning daring snrh retarded period.

J3. s|1 ,\ed-co11l1'olling ala1'n1 device e111- hodying, in eomhination. ineans having a movement variahle in accordance with the speed ot a vehicle. :darin mechanism havingr an alarm-artneting element operable hy engagement with said speed variahle nie-1111s at a predetermined position in is speed-vari11hle n10ve111ent, means for delaying the alarnigiving action oi said alarin-actuating element for a predetermined period at'tei' engagement thereo't by the speed-variahle 111eans.a second alar1nactnati11g ele111e11t engageahle with said speed-Variable means at another position in its speed-variable movement and operable to give an alarm immediately npon engagement therewith.

4. A speed-controlling alarm device embodying, in combination, means having a n1ove111ent variable in arcol'danee with the speed ol' a vehicle. alal'ni mechanism having an alarnractnati111: element operable hy e11- gagenwnt with f.1id Speed-variable means at a p1'edeter1nined position in its speed-variable niowment.r means tor delaying the alarm-giving action ot said ala1'111-aetnating element. tor a predeerinineal period after engagement {herr-o1 |11' the .speed-variable means, Said aenating elenleni e1nl1odying 11` pinion operating' on :1 shalt and said delaying nieans c0111- 111'.. ing 11 eonnection arranged 1o permit independent roailion ol said pinion 11nd Shaft for a given ninnher ot revolutions and conjoint rotation thereafter.

.3. A siwed-control]ing alai'ni device e111- hndying. in conihination, mechanism having 11 111o1'e111ent variahle in accordance with the speed of a vehicle and provided with an actnri ing' nieniher. alarm-giving niechanisni inclnding an actuating shaft, a pinion on said shaft and engageahie hy the speed-variahle acl nating inen1he1' and rotatable independentliv o1" said shalt Ytor a given number ot' revolutions' thereoil` means actuated hy the rotation ot' said aetnaiing shaft to give a p1'i111111'y 111111111. 11nd another pinion on said shaft engageahle with said speed-variable mechanism and arranged to give an alarm immediately upon engagement.

In witness whereof. I have signed my name to the foregoing specification.

STERLING G. SEARS. 

